For the function, determine the inverse, sketch the graphs of the function and its inverse, and state the domain and range of both the function and its inverse.

f(x) = 3- 4x

At PA Fashions, Rebecca is paid a monthly salary of$1500, plus 4% commission on her sales over $2500.

a) Graph the relation between monthly earnings and sales.

b) Use function notation to write an equation of the relation.

c) Graph the inverse relation.

d) Use function notation to write an equation of the inverse.

e) Use the equation in part (d) to express Rebecca’s sales if she earned $1740 one month. Then evaluate.